.root-node {
  margin: 0 auto;
  text-align: center;
  font-size: 20px;
  color: #000;
  opacity: 0.9;
  background-color: #fff;
  box-shadow: 0 0 13px 0 #e4e4e4;
  padding: 10px 0;
  border-radius: 6px;
  font-weight: bold;
}
